Calcium supplements for infants can be calcium carbonate, calcium lactate, etc., and need to be produced by regular manufacturers. If your child is diagnosed with calcium deficiency, common calcium supplements include calcium carbonate, calcium gluconate, and calcium lactate. Calcium carbonate is inorganic calcium, usually extracted from minerals, and has a poor taste, but an acceptable absorption rate. Calcium lactate is higher in calcium content, absorption rate can be, good taste, good acceptability of the child, so it is usually more difficult to feed the child can choose oral calcium lactate. Choosing calcium supplements need to choose products produced by regular manufacturers and sold through regular channels to ensure quality. Infants blindly supplement calcium, may be constipation and other side effects, so you need to be under the guidance of a doctor.